A collection of anatomical samples from one of the first anthropologists to suggest that humans reached North America by crossing the Bering Strait.

Microscopic scenes; some call it novelty, some call it art.

A steampunk-styled three-floor factory churning out art, activism, and electronic beats.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

The first museum in the world devoted to sexual gadgetry.

Walk through Czech history in Prague's largest graveyard.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

A Jenga-style cylindrical tower of books that appears to go on forever.

Two stunning 17th-century libraries and a cabinet of curiosities.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

A visionary precursor to the Internet made of index cards.

This former Masonic lodge has been transformed into part museum, part bar, all awesome.

Medical history with an amazing, if frighting, collection of wax diseases on display.

Part modern art project, part traditional chapel, this see-through church is only substantial from the right angle.

The only university zoological museum in London houses extinct animals, bizarre natural history specimens, and a Micrarium of microscopic creatures.

The anatomical-pathological collection of a man who changed surgery.

The home of the morbid art of corpse plastination is open for visitors to view the fascinating, but stomach-churning process.

An eerie, derelict amusement park in Berlin.

Berlin's natural history museum houses the world's largest mounted dinosaur and the late beloved polar bear Knut.

A surreal museum of extraordinary industrial objects.

A collection of abandoned typographic signs from Berlin and beyond.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

A curious collection dedicated to human and animal anatomy and pathology.